Plant Parasites of Europe

leafminers, galls and fungi

Parornix alpicola

Parornix alpicola (Wocke, 1877)

alpine slender

mine

The larva first makes a lower-surfsce epidermal corridor. Next the larva begins to feed on the sponge parenchyma, subsequently also the palissade parenchyma; the initial corridor becomes obliterated. The final mine is full depth, occupies half of a leaf, at one side of the midrib, and is almost flat. The upper side turns orange brown. Finally the larva vacates its mine and spins a new leaf into a pod, that is eaten from the inside. If needed still another leaf is treated the same way. Pupation in a brownish cocoon onder a folded leaf margin.

host plants

Rosaceae, monophagous

Dryas octopetala.

phenology

Univoltine; full-fed (no longer mining) larvae in late July – early August (Emmet ao, 1985a).

distribution within Europe

Alps, Scotland.

larva

Pale greenish, head light brown. Prothoracic shield pale green with four transverse blackish spots (Emmet ao, 1985a); picture in Schmid.

pupa

Described by Patočka, (2001b), Patočka & Turčáni (2005a).

synonyms

Parornix leucostola Pelham-Clinton, 1964.

references

Baldizzone (2004a), Buhr (1935b), Emmet, Watkinson & Wilson (1985a), Hering (1957a), Hoffmann (1893a), Huemer (1988a), Klimesch (1950c), Klimesch & Skala (1936b), Patočka, (2001b), Patočka & Turčáni (2005a), Pelham-Clinton (1967a), Schmid (2019a).

Last modified 11.ii.2021